Means for treating sheet glass



17am 2, w23,

M. J. owsmsf MEANS FOR TREAT me SHEET GLASS ORlGlN/LL vFl LED Jura: 7, 1919.

2 sHEETssHEET 2 Patented dan. 2, i923.

MXCHELJ'. OWENS, OF TQLEDO, HO, ASSGNGR TO THE LBBEY O'WEN GLASS COMPANY, 0F TGLEDD, (3l-EZIO, A CDRPORATUN F GEIQ,

IVEANS FOR TREATNG SHE-ET GLASS,

Application filed June 7, 1919, Serial No. 302,544. Renewed Butcher 21, 5.922. Serial No. 596,177..-

To all cfm/ft 1', may; fo/cern v Be it known that L tici-Linn J. Owens, a

citizen of the United Staates, residing` atl o ing sheet. glass in an aeid bath and partie-iilarly to ineans t'or giving such treatnient as a step in the method of nialiing glass wherein the. glass is drawn in a continuous sheet. lt is customary in the inanuiaetiire ot win- 5 dow glass 'to dip the sheets ot glass into a bath ot acid or suitable.I liquid tor removing impurities and clearing the surface ot' the glass. In aeeordanee with the present. invention7 the glass which has been drawn 20 'roin a pool of niolteii glass and passed in a continuous sheet through an annealing leer, is carried by an endless conveyor through an acid bath either before or after the sheet is out into sections.

2i, ln the areoinimnying drawings` which illustra-te a. eonstiuct'ioii embodying the principles of iny iiiveiiioii:

.i Figure l is a plan view ol the apparatus.

Figure 2 is an elevation ot the saine.

i a lfgure 2E is a` sectional elevation on a larger scale. taken longitudinally through the bath.

Figure -lis a t'i'agnnaitary sectional vri/ew taken at the line 4-4 on Figure il. i

Figure 5 is la detail showing ineans l'or driving the conveyor. .I

The glass inay be t'orincd iil a well known manner by drawing it in a continuous sheet t'roui. a pool ot' molten glass. thev sheet being passed horizontally throughr an annealing' io oven or leer Si.. s tho sheet ot' glass 1.()r

emerges t'roin the leer it. continues its horilzout-al travel over a drawing table or endless conveyor l1, the `latter 'running on sproeltets or rolls onshafts l2 at the ends oi 5 a. siipportng 'traine/13. 'The conveyor 11 ,.niay be driven hy a worin l5 meshing with a worin wheel 1=1l on the forward shaft l2, the worin l5 being carried on a drive Shaft 1G.

5o Beyond the` conveyor or table 11 is another' endless conveyor 17 running on rolls or sprockets '18, l5), supported on a li-'anio 2G. 'i'lhe roll 1li) may be, driven by a. worin wheel t2?, and a` worin 521 on the drive shaft lily invention relates to means for treaty '16. A receptacle or tray 22 beneath tlie' upper lead ot' the. Conveyor and extending lengthwise thereof, Contains a liquid 9A inA which the vglass iinniersed as itAis Carried hy the conveyor. This may be an aeid bathsueh as is commonly used oVtreat-ing Win- G0 dow or sheet glass 'for removing impurities from the surface thereof. The conveyor 17 by its own weight and the weight of the glass thereon. sufficiently to immerse the glass. t'ter passing through the bath," the 6 5 glass niovesriipward in an inclined direction above the surface of the. liquid,'permitting drainage before. it passes beyond the endl otl the tray. The. glass inay pass in a'eontinuoiis sheet through the b:itli,bnt is pref- 70 crably cut transversely into individual sheets or sections il() before entering the bath. rthe cutting is ordinariljttdone by hand as the glass passes over the table 1,1,

or niay be done by automatic machinery. 75 (luide rolls 25 may be. positioned intermediate the rolls lb and It) to support the eonveyor L7 and the. glass thereon. The, `conveyor t? may be provided with studs or projections 2T at regular intervals to proso ject upwardly between the individual secl tionsot' glass, thus serving as a positive `ineansm'f'or advancing the glass with the conveyor and preventing overlapping ot the f sections. s.)

Variations iiiay be i'esortcdto within the spirit and seope ot nity invention.

ll'hatl claiin is:

l. The con'ihination with means to eontinuously advaiire an endless sheet ot' glass ai) horizontally through a leei'. a receptacle to,

'contain a liquid' positioned beyond the leer and means t'or causing the glass to travel through the liquid.

2. The. combination with ineaiis to eonfifi tiniioiisly advanee. an endless sheet ot glass horizontally through a le .r. of a horizontal supportover which a sheet ot' glass is coutinuously advanrcd t'i'oui the leer. a` traveling support located beyond the Iii-st inenloo tioned support in substantial aligiiiinenttherewith, and a bath beneath said traveling support through whirh thc latter with the glass thereon is caused to pass.

Sigi'ied at Toledo, in the county ot Lucas lo?) and Stato ot Ohio, this 3rd ila'v ol June,

MICNAE", J. (NVENS. 

